Home / 1,125,484.88-1,553,317.06-641,939.18

Finding the Fourth Proportional to 1,125,484.88, 1,553,317.06 and 641,939.18

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Solution

The fourth proportional to 1,125,484.88, 1,553,317.06 and 641,939.18 is: 885,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,484.88 : 1,553,317.06 = 641,939.18 : x
  2. Step 2: Convert to fraction form
    1,125,484.88/1,553,317.06 = 641,939.18/x
  3. Step 3: Cross multiply
    1,125,484.88x = 1,553,317.06 × 641,939.18
  4. Step 4: Simplify right side
    1,125,484.88x = 997,135,079,776.41
  5. Step 5: Solve for x
    x = 997,135,079,776.41/1,125,484.88
  6. Step 6: Final answer
    x = 885,960.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.